Description
A stored Cross-Site Scripting (XSS) vulnerability has been discovered in XunRuiCMS version 4.7.1. The vulnerability exists due to insufficient validation of SVG file uploads in the dayrui/Fcms/Library/Upload.php component, allowing attackers to inject malicious JavaScript code that executes when the uploaded file is viewed.
Affected products
xunruicms: xunruicms
References1
- snowhy77.github.io/2025/08/18/File-Upload-to-Achieve-Stored-XSS… ExploitThird Party Advisory
Metrics
- CVSS 3.1
-
6.1
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 14 · as of 9 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.